Christopher Banks is the main character in the novel "The Confessions of Max Tivoli" by Andrew Sean Greer. He is a detective in early 20th-century London, driven by the mysterious disappearance of his parents during his childhood. His quest for answers leads him through various challenges and personal growth. As a character, Christopher embodies themes of loss, identity, and the search for truth. His journey reflects the complexities of human relationships and the impact of the past on the present. The narrative explores his emotional struggles and the societal changes of his time, making him a relatable figure in literature.